Machine for heating and tempering needles.



L. A. WIIAIIRAD.

MACHINE FOR HEATING AND TEMPERING NEEDLES.

APPLICATION FILED IAN.26, I9I4.

1,177,218. Patend Mar. 28,1916.

Illini/4@ THE COLUMBIA PLANOGRAPH co., WASHING-rml, u. c.

Y Y while the needles or other articles are under- LIONEL ALFRED WHARRAD, 0F REDDITCH, ENGLAND, ASSIGNOR T0 WI-ABRAD ENGI- NEERING COMPANY LIMITED, OF REDDITCH, ENGLAND, Av CORPORATION.

MACHINE FOR HEATING AND TEMPERING NEEDLES. l

To aZZ whom it may concern.'

Be it known that I, LIONEL ALFRED VVHAR- RAD, a subject of the Kingdom f of Great Britain, residing at vWharrad Vorks, Redditch, in the county of Worcester, England, have invented certain Improvements in Machines for Heating and Tempering Needles, of which the following is a specification.

This invention comprises a machine for use in connection with the tempering or heating of needles, fish hooks, pens, screws,

and other articles of a like nature.

It has before been proposed to heat needles and similar articles within an` inclined rotary tube, to oneend of which the needles are introduced, and from the other end of which the needles egress, provision being incorporated for adjustingthe inclination of the tube.

. According to the present invention the needles or other articles are heated within a rotating chamber of cylindrical or other suitable shape, the wall of which chamber is internally heated.

In the present invention the goods advantageously egress from the end of the chamber by which they have been introduced, the chamber being advantageously installed according to a cantaliver arrangement by virtue of which it can be elevated,

going the process, after which the chamber can be caused to oscillate into a position in which-the needles or other articles readily egress by., gravitation. The means for impartinglrotary movement to the chamber are transmitted through the medium of a shaft which is concentric with the axis of oscillation of thel chamber, whereby the driving mechanismis unaffected by the oscillatory movement of the chamber. The space for containing the needles or other articles is advantageously of annular formation, and the chamber is advantageously closed at one end by a hollow end wall containing the heating medium, and which end wall communicates with the outer heating wall, the heating medium or fuel therefor being supplied by way of a tube or conduit upon which the chamber is mounted and through the medium of which tube or con- Speciication of Letters Patent.

Application filed January 26, 1914. Serial No. 814,489.

duit the chamber may be oscillatorily mounted upon the frame or stand of the machine.

In order that this invention may be clearly understood and readily carried into practice, reference may be had to the appended explanatory sheet of drawings, upon which Figure l is an elevation of a machine according to the present invention. Fig. 2 is a central section of the chamber part of the machine shown in Fig. l. Fig. 3 is a part central sectional elevation of the machine shown in Fig. l.

In a convenient embodiment of the present invention, the cylindrical chamber a is constructed of sheet metal, there being an inner and outerrwall of sheet metal in order to form a hollow7 wall for the chamber. This hollow wall is continued to permanently close one end of the chamber, and a concentric hollow cylinder a1 is provided within the interior of the chamber a and extending for substantially the whole length of' same, the hollow walls and central cylinder being throughout constructed of the sheet metal which is lined internally with asbestos as shown at a4. At its closed end the chamber is mounted upon a tubular member b by which it is carried the said tubular member Z) being rotatably mounted in a bracket o in such a manner that the chamber projects or overhangs, while at the other end of the chamberl a removable closure or door a2 is provided for completely inclosing the annular space between the central cylinder and the hollow wall of the chamber in which the articles to be treated are placed. Said door may if desired be furnished with a mica window to facilitate inspection of the goods while contained within the chamber. A gas burner Z is provided with an elongated` nozzle (Z1 adapted to project into the end of the tubular member remote from that at which the latter is secured to the chamber in suclrfa manner that an annular space is left betweenthe gas nozzle and the tubular member. to admit air and permit of a Bunsen flame withinthe hollow walls of the chamber. The said burner may consume ordinary or other gas or liquid fuel. The nozzle d1 is adjustable longitudinally in relation to the tubular member Z1 and it may be furnislied with a. conical part which according to the position of longitudinal adjustment more or less closes or opens the ingress extremity of the tubular member The adjustment may be eilected by loosening and tightening the wing nut 7c providedV uponV a screwed stem which passes through an elongated holein the biacket which carries the nozzle (Z1. A small rotary or other blower may it desired be incorporatedto create a forced draft insuring the proper application of the tla'me to the heating part of the machine. At the juncture O the tubular member with the chamber' a wire gauze diaphragm eis provided to prevent the Haine from liringbaek to the nozzle d1. By this arrangement a iajme is obtained throughout the walls of the chamber, there being suit-- ablereiits or outlets@3 provided for, the products of combustion at the extremities oi' thewall remote from the point at which the combustible enters.

The bracket c wl'ch carries the tubular part Z) to which thechamber dis secured embraces the s aidp'ar't at two vpoints in its length in order to effectively support the chamber andthe said bracket,isfurnished with a Ytrarisvei'sepivot f by \v liicli tl ie axis of the chamber can be inclined o'r t ipp ec l ,tli e said pivot working in a suitable stationary frame or support Concentrijcajlly disposed vin relation to this pivot fand advantageously passing through same isa driving shaft f1 having a worm Fadaptedtogear with a worm wheel f? provided upon the tubular member so that powermay'be Yimparted to rotate thelatter.l As the driving shaftlis v concentric with the piyotupon vl 1 ic h the chamber may be displaced', the tiltingor tipping of the chambercan be eiiected Vwithout interfering with the driving connection between the driving shaft land the Worm wheel- To provide fornthe adjustment of inclination of the chamberand locking ofwjsaineat any particular inclination, the lpiiiotwliicli moves with the cliamberisfurnished with an arm li with which a screwed steinzf coperates, the said screwed stem Working/within a threaded boss/1 on. the stationaryfranieof the machine sothat by rotating the screwed stem a `hand leverjvz'2 provided thereon, movement is imparted to the arm, The. arm may be entirely separate orndisengaged from the screwed stein but may remain in contact therewith by the weight ofthe barrel in which case the screwed stem forms astop by which the barrel is retained in the projected position. The screwecbstem may however be coupled to the arm by alinkor thelike in such a manner that the barrel is positively locked thescrewfrom movement in 'either direction at any vadjustment, at which it is placed..

It w1 ll be understood thathangein orin and proportion of parts of the preferred embodiment of my invention as set out herein may be made without departing from the `spirit and scope of 'my invention as set forth i-n the appended claims.

W'iiatl claim as my invention and desire to secure by Letters Patent is Y v i I. The .con'ibination-inia mac'liinefor heating and tempering needles, ish hooks, pens, screws andthe like, ofa" receptacle of ann'u'v'l'ar formation having a hollo\y 1 id w al l kand liol'lo'w side walls communicating with said hollow end ivall, means tor supplying heat to the interior of said hollow walls, a hollow tube carrying said receptacle and adapted to conveyy tli'e heat thereto", .means for supporting said tube and receptacle, and means roi` varying the angular positi'oniot' the axis of the said tube and receptacle with respect to the horizontal. 2.v The comb'nation in a machine for heating vand tempering needles, isli hooks, pens, screws and the like, of a receptacle closed 'at one end and liaving hollow walls, 'a

closure for the other end of -said receptacle,l

a concentric "hollow 'cylinder within said ref cepjtacle and' communicating with the said hollow; walls, means ,tor internally lheating said wallsand cylinder, means for varying l tliejinclination of tlieaxis ot' said receptacle in a, tilting movement, means `for rotating saidreceptacle, and an, asbestosli'ni'rrg. for said hollow walls and cylinder. 3. The combination in a machine for heating and tei'npering needles, lish hooks', pens, screws and the like, oi' a receptacle having spaced innerv and outer walls inclosing the sides and bottom of a chamber open at oneend, a hollow s pin'dleconnectegd with the b 'ottr'imotvsaid receptacle wherebytlie receptacle is supported, means for intro? ducing hot gases through said spindle into the space between said walls, means for rotating V said spindle and means for tilting said spindle.

lflie Acombination iny a machine Vfor h eatin'gand tempering needles, fish hooks, pe ns, scr evvs and the like, of a receptacle havin-g spaced inner and o'utenI walls inclosing the sides and bottom of the charnber open a't one en df, a hollow spindl'efconnected wit'h the bottom of saidl receptacle whereby the receptacle is supported, means for introducing hot gases through said spine dle into the space between said walls,`1neans disposedinwardly 'so as to form k'a recess opposite the end ofsaid spindle.:

5. The combination 1n a machine for heating and' tempering needles, fish hooks, pens,

screws and tbelike, of a receptacle having spaced inner and outer walls inclosing the.

sides and bottom of the chamber open. at

01.16, end, a hollow Spindle, Connected with isb the bottom of said receptacle whereby the receptacle is supported, means for introducing hot gases through said spindle into the space between said walls, means for rotating said spindle, means for tilting said spindle, the said bottom wall being disposed inwardly so as to form a re'cess Opposite the end of said spindle, and a cover for said chamber.

6. The combination in a machine for heating and tempering needles, fish hooks, pens, screws and the like, of a stationary frame, a pivot carried by said frame, a bracket carried by said pivot, a hollow axle carried by said bracket, a receptacle having inner and Outer walls spaced apart and inclosing the sides and bottom of a chamber open at one end, the aperture in said hollow spindle being arranged in connection with the space in the bottom of said receptacle, means for introducing hot gases through said spindle into the space between said Walls, ran arm fixed tO said pivot, a screw for adjusting the position Of said arm so as to tilt the receptacle, a shaft passing through said pivot, a Worm on said shaft, and a gear on said axle whereby the receptacle may be turned.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

LIONEL ALFRED VHARRAD. Witnesses:

T. H. POOLE, A. 0. ROBINSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patente, Washington, D. C. 

